I am just about to give up on this thing. Maybe I'm just not smart
enough to figure it out but I am at wits end with this setup.
I have all the configuration set up: TS-7620 with a TS-GSM1, a GR64
modem and a Cingular SIM card. I run PPPD with all the proper
switches, APN, user and password, etc, etc (after much trouble I
think I have it down). the only weird thing is I am at 9600 baud to
prevent the buffer overruns I was getting. It connects to something
after dailing *99***1#, it begins LCP authentication, I pap
authenticate (somewhere), and get an IP address (85.102.119.136),
then it terminates the connection. That' it. I can't get any further.
The IP resolves to a Turkish company interestingly enough.
Cingular can't help me because it is not supported hardware but after
much pestering they say that they never see this device or the
request from the SIM on their network and they they have not issued
me any IP address, etc.
Sony Ericsson doesn't support the device either, it apparently belogs
to 3M but they don't even have a reference on their website for
support in this area.
That leads me back to TS but they don't have much to offer on this
either. They supply the hardware, I need to figure out how to make it
work. If I ever figure this out I will document it and send it in to
TS to save others from this plight. so, enough griping...
More intereting facts:
The username and password does not matter, anything with work
and CINGULAR1 are what they should be).
The modem thing does the same negotiation with or without the SIM?
Switches: (I've tried everything!)
lcp-echo-failure 0
lcp-echo-interval 0
nodetach
debug
show-password
connect "/usr/sbin/chat -s -S -v -r log.txt -f /etc/ppp/peers/gprs-
connect-chat"
disconnect /etc/ppp/peers/gprs-disconnect-chat
/dev/tts/5
9600
crtscts
#lock
local
#:10.0.0.1
#noipdefault
ipcp-accept-remotep/peers/gprs-disconnect-chat
remotename cingular
ipparam cingular
defaultroute
#usepeerdns
novj
nobsdcomp
novjccomp
user
password CINGULAR1
default-asyncmap
Connect script:
ABORT ERROR
'' ATZ
OK ATE0
OK ATV1
OK AT+CFUN=1
OK AT+CREG=1
OK AT+CGDCONT=1,"IP","ISP.CINGULAR"
OK ATDT*99***1#
CONNECT '/d'
LCP Negotiation:Serial connection established.
using channel 3
Using interface ppp0
Connect: ppp0 <--> /dev/tts/5
sent [LCP ConfReq id=0x1 <magic 0x79af8274> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x1 <asyncmap 0xa0000> <auth pap>]
sent [LCP ConfRej id=0x1 <asyncmap 0xa0000>]
rcvd [LCP ConfRej id=0x1 <pcomp> <accomp>]
sent [LCP ConfReq id=0x2 <magic 0x79af8274>]
rcvd [LCP ConfReq id=0x2 <auth pap>]
sent [LCP ConfAck id=0x2 <auth pap>]
rcvd [LCP ConfAck id=0x2 <magic 0x79af8274>]
sent [PAP AuthReq id=0x1 user=""
password="CINGULAR1"]
rcvd [PAP AuthAck id=0x1 ""]
PAP authentication succeeded
sent [IPCP ConfReq id=0x1 <addr 0.0.0.0>]
rcvd [IPCP ConfReq id=0x3 <addr 85.102.119.136>]
sent [IPCP ConfAck id=0x3 <addr 85.102.119.136>]
Modem hangup
Connection terminated.
(some varioations occur with switchs here but all get terminated)
Can anyone help? Does anyone have one of these working with Cingular?
Bill
--- In "BillBergeron" <>
wrote:
>
> Yan,
>
> This is a good suggestion. I had not thought of it being a local
> problem. Even when I do connect I sometimes still see the "input
> overrun(s)" error. So it makes perfect sense.
>
> I don't really know how to reconfigure the Serial port to fix this
> though? It's the Com5 (/dev/tts/4) port that is created from the
> PC104 bus connection. I have setserial and a few other tools but
> these just adjust the baud rates and such. How would I go about
> making changes to the port?
>
> Bill
> --- In "Yan Seiner" <yan@> wrote:
> >
> > --- In "BillBergeron" <billbergeron@>
> wrote:
> > >
> > > This LCP negotiation has me stumpted. Just when I thought I had
> > > finally figured this all out. After doing some research on LCP,
I
> > > realize that these are send packets to the ISP (Cingular) and
am
> not
> > > getting any packets back from them. So they are either being
> blocked
> > > (very doubtful since it comes from their cell towers), they
don't
> > > understand the LCP packets I'm sending, or they are just not
> sending
> > > them. I changed, removed, and added every PPP option I could
> (auth,
> > > noauth, require-pap, require-chap, ascnymap, nomagic, lock,
> local,
> > > passive) and other than changing the data in the packet it
> doesn't
> > > seem to make a difference. I am going to look into the PPP
> related AT
> > > commands to see if I have to do anything to put the modem into
> the
> > > correct mode before the LCP packets are sent but other than
that
> I am
> > > stuck.
> > >
> > > If anyone has a suggestion I would be happy to hear it.
> > >
> >
> > OK, here's a guess:
> > > > >
> > > > > I changed CONNECT "" to CO "" and it seems to work...sort
of.
> I
> > > seem
> > > > > to establish a connection but then the negotiation seems to
> fail.
> >
> >
> > I'd figure out why your incoming serial port can't handle the
> CONNECT
> > string... If you have a buffer overrun, then LCP would fail as it
> > can't get good data in.
> >
> > Can you set up a test modem to dial in to? Set it up on a serial
> line
> > and run mgetty on it. See if you can connect from your cell
modem
> to
> > the test modem just with pure ASCII communication.
> >
> > It sounds like either a bad or misconfigured serial port, at a
lower
> > lever than PPP.
> >
> > --Yan
> >
>
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